Functions in inflammation. Can cleave a variety of proteins, including fibrous elastin, collagen, clotting factors, TNF-α , and α 1- antichymotrypsin. Because of its potential roles in inflammatory diseases such as emphysema and cystic fibrosis, it is a target for drug discovery. Alternative name: Leukocyte elastase. LE. Purity: ≥95% (SDS-PAGE). Although this is in highly purified form, and the. Source material tested negative for HbsAg, anti-HBc, anti-HCV, and anti-HIV-1 and -2, handle this product with all due precautions. Source: Isolated from human neutrophils. Active enzyme. Use/Stability: This enzyme is stable when stored under the above conditions. Procedures such as dilution of the enzyme followed by refreezing could lead to loss of activity. UniProt: P08246. Handling: Avoid freeze/thaw cycles. After reconstitution, prepare aliquots and store at -80°C. Long Term Storage: -20°C